( 112) 
LEUCOBRYUM GIGANTEUM C. Mill. 
Near Atten, 1800 meters, August 6, 1902 (1864) ; common 
near the lower Sorata river at 1200-1500 meters. 
OcTOBLEPHARUM ALBIDUM (L.) Hedw. 
Mapiri, 480 meters, September 17, 1901 (1863); Tumu- 
pasa, 540 meters, December 8 
OcTOBLEPHARUM PULVINATUM Mitt. 
On stumps, Tumupasa, 540 meters, January 3, 1902 
(1862). 
Fissipens crispus Mont. 
Sorata, 2250 meters, on clay bank, June 3, 1902 (1697). 
Determined from description only. 
Fissipens Kecerianus C. Mill. 
San Juan, Apolo-Lanca trail, 1050 meters, March 22, 
1902 (1694). These specimens seem to be nearer to Trini- 
dad specimens than to Spruce’s from the Rio Negro, in hav- 
ing rather narrow leaves and short stems. 
Fissidens (Heterocaulon) excurrentinervis sp. nov. 
ioicous; male plants 0.25 mm. high, 3- or 4-leaved at 
the Paice base of the much larger sterile and fertile 
stems. Sterile stems 2 mm. high, with & to 1o pairs of leaves, 
the ae mete the middle broadly oblong-lanceolate, about 
0.5 g and one third as broad, the upper often slightly 
smaller. ae closely imbricated, all smooth, without border, 
nearly entire, acutely pointed, with costa vanishing 2 or 3 
cells below apex, the sheathing lamina extending four fifths 
or more up, dorsal lamina gradually narrowing below and 
disappearing three fourths down or before; leaf-cells rather 
oe hexagonal, 8-12 long. Fertile stems scarcely 
high, with 3 or 4 pairs of leaves, the perichaetial much 
ena above, often reduced to the stout excurrent costa 
only, with the clasping part more or less truncate at apex: 
seta erect, up to 4 mm. long; capsule ovate-oblong, erect, 
0.8 mm. long, not constricted under the mouth when dry, 
with a short, obliquely beaked lid, its height equalling itsbasal 
diameter; annulus none; teeth of peristome attached well 
below mouth, rather irregular, ex ect, red, smooth, split about 
one half down; exothecal cells hee walled, short oblong, 2 
or 3 rows about ‘mouth aang! elongated : spores smooth, 
up to 13 # in diameter 
